Protocols
DNS, HTTP/S, mail protocols, and hands-on Wireshark packet analysis.
1. DNS — How It Works
How DNS resolves domain names, common record types, and DNS security risks.
15 min
+24 XP
2. HTTP vs HTTPS
Compare cleartext HTTP and encrypted HTTPS—including ports, TLS, and why HTTPS matters.
15 min
+24 XP
3. FTP, SSH, SMTP, IMAP
Know FTP, SSH, SMTP, and IMAP ports, purposes, and security pitfalls.
15 min
+24 XP
4. Lab — Wireshark Packet Analysis
Capture your own traffic in Wireshark and inspect DNS, HTTP, and TLS packets.
25 min
+24 XP
5. Quiz — Protocols
10-question quiz on DNS, HTTP/S, mail protocols, and ethical packet capture.
10 min
+24 XP